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Last Updated on: Friday, February 05, 2010 10:05 AM

 

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Matrix LED Display - A mini display using an array de 5x24 LEDs using Microchip PIC 16F628. (added circuit 10/04)

Message Wand - The message wand is a good PIC introduction as it is a simple project yet illustrates many aspects of the PIC usage. Used at night, the wand is swung around above the head, and to onlookers spells out a short message in the air using flashing LEDs. It could also be used with a handle and spun round like a traditional soccer rattle (can you still get those?) though great care must be taken if you do this....(circuit added 04/04/04)

Microcontroller displays multiple chart or oscilloscope timing ticks - (Design Ideas - EDN, 5/1/2008  A crystal controlled microcontroller generates precise timing ticks. (electronic design idea added 06/07/08)

Microcontroller drives LCD with just one wire - (Design Ideas - EDN, 12/3/2007  A Microchip PIC10F family microcontroller sparks an HD44780 LCD using a single I/O pin. (electronic design idea added 9/2008)

Microcontroller drives logarithmic/linear dot/bar 20-LED display - (Design Ideas - EDN, 01/18/2007)  Do-it-yourself analog-to-LM3914 display driver offers user programmability.  (schematic added 6/07)

Microcontroller moving-dot display interface uses three I/O lines - (Design Ideas - EDN, 5/1/2008  A moving-dot LED-display interface to a microcontroller uses only three output pins. (electronic design idea added added 06/07/08)

Morse Code Display - (electronic circuit added 4/05)

MOSFET  Serves as Ultrafast Plate Driver - 10/03/02 EDN Design Ideas  /  (added 1/05)The circuit in Figure 1 provides a 20-MHz square wave across a set of highly capacitive ion-deflection plates in an experimental instrument. To get the required deflection, the plate voltage must be 20 to 30V, much higher voltage than conventional logic or driver families can provide....

New CCFL Power Supply Expands Automotive Applications for Back Lit Liquid Crystal Displays - MicroNote 1402 from Microsem  (app note added 6/06)

Nixie display tubes  - ASCII format (circuit design added 10/06)

Novel Process for Vacuum Fluorescent   VF Display Drivers - National Semiconductor Application Note   (app note added 2/06)


 

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